Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/22—Organic compounds containing nitrogen
  • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
  • C10L1/224—Amides; Imides carboxylic acid amides, imides
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/08—Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/18—Use of additives to fuels or fires for particular purposes use of detergents or dispersants for purposes not provided for in groups C10L10/02 - C10L10/16
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/22—Organic compounds containing nitrogen
  • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
  • C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L2200/00—Components of fuel compositions
  • C10L2200/04—Organic compounds
  • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
  • C10L2200/0415—Light distillates, e.g. LPG, naphtha
  • C10L2200/0423—Gasoline
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L2200/00—Components of fuel compositions
  • C10L2200/04—Organic compounds
  • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
  • C10L2200/0438—Middle or heavy distillates, heating oil, gasoil, marine fuels, residua
  • C10L2200/0446—Diesel
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
  • C10L2230/08—Inhibitors
  • C10L2230/086—Demulsifiers
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
  • C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L2270/00—Specifically adapted fuels
  • C10L2270/02—Specifically adapted fuels for internal combustion engines
  • C10L2270/023—Specifically adapted fuels for internal combustion engines for gasoline engines
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L2270/00—Specifically adapted fuels
  • C10L2270/02—Specifically adapted fuels for internal combustion engines
  • C10L2270/026—Specifically adapted fuels for internal combustion engines for diesel engines, e.g. automobiles, stationary, marine

Definitions

• the present invention relates to a fuel composition comprising a liquid fuel and a quaternary fatty amidoamine compound.
• the present invention also relates to the use of the quaternary fatty amidoamine compound as an additive in a liquid fuel for an internal combustion engine.
• the invention also relates to a process for keeping clean and/or cleaning up at least one of the internal parts of an engine, in particular an internal combustion engine.
• Liquid fuels for internal combustion engines contain components that can degrade during the functioning of the engine.
• the problem of deposits in the internal parts of combustion engines is well known to motorists. It has been shown that the formation of these deposits has consequences on the performance of the engine and in particular a negative impact on consumption and particle emissions. Progress in the technology of fuel additives has made it possible to face up to this problem.
• “Detergent” additives used in fuels have already been proposed to keep the engine clean by limiting deposits (“keep-clean” effect) or by reducing the deposits already present in the internal parts of the combustion engine (“clean-up” effect). Mention may be made, for example, of U.S. Pat. No. 4,171,959 which describes a detergent additive for gasoline fuel containing a quaternary ammonium function.
• WO 2006/135881 describes a detergent additive containing a quaternary ammonium salt used for reducing or cleaning deposits, especially on the inlet valves.
• This phenomenon is caused, during operation of the engine at low temperatures (in cold weather for example), by an accumulation of deposits having a high viscosity at the interface between the intake valve stem and the valve guide, in the spark ignition engines with indirect injection.
• the accumulation of such deposits on the valve stems hinders the movements of the latter, the stems stick to the valve guides, which causes a poor closing of the valves, causes problems of sealing in the combustion chamber, and can affect importantly the operation of the engine, and in particular can prevent it from starting in cold weather.
• a first type of deposit consists of those formed at high temperature on the intake valves of indirect-injection spark-ignition engines when a fuel containing no detergent additive is used. These deposits consist in particular of carbon residues related to the phenomenon of coking and may also include soap-like deposits and/or varnish (also named lacquering deposits). These deposits are generally treated by the use of detergent additive added to the fuel (additive-containing fuel).
• a second type of deposit consists of viscous deposits, mentioned above, which are formed at low temperature and appearing on the intake valves of indirect injection spark ignition engines when using fuel with additives, thus causing the sticking phenomenon of the valves described above.
• the fuel additive used for the treatment and prevention of deposits that form at high temperatures can cause the appearance of viscous deposits at low temperatures.
• the present invention relates to a fuel composition
• a fuel composition comprising:
• the compound of formula (I) has one or several of the following features:
• the compound of the fuel composition is of formula (Ib):
• Z represents a C 1 -C 16 , linear or branched, saturated or unsaturated, cyclic or acyclic, aliphatic or aromatic hydrocarbyl group optionally substituted by a functional group comprising an oxygen and/or a nitrogen atom, preferably a group selected from a methyl group, a n-pentyl group, ortho-hydroxyphenyl, —(CH 2 ) 10-12 CH 3 and heptadec-8-enyl, more preferably from ortho-hydroxyphenyl and —(CH 2 ) 10-12 CH 3 , even more preferably from —(CH 2 ) 10-12 CH 3 .
• the liquid fuel is selected from diesel fuels and gasoline fuels.
• the fuel composition comprises at least 5 ppm by weight of the compound of formula (I), preferably from 5 to 10000 ppm by weight of the compound of formula (I).
• a second object of the invention relates to the use of a compound of formula (I) as defined above, as a detergent additive and/or as a demulsifying additive and/or as a lubricant additive and/or as a corrosion inhibitor additive and/or as an antioxidant additive and/or as a conductivity improver and/or as a metal deactivator, in a liquid fuel for internal combustion engine.
• the liquid fuel is selected from diesel fuels and gasoline fuels.
• the compound(s) of formula (I) is(are) added in the liquid fuel in an amount of at least 5 ppm by weight, preferably an amount ranging from 5 to 10000 ppm by weight.
• the compound of formula (I) is used in a liquid fuel to limit or prevent the formation of deposits in at least one of the internal parts of said engine and/or to reduce the existing deposits in at least one of the internal parts of said engine. According to an embodiment, the compound of formula (I) is used to reduce the fuel consumption of the engine. According to an embodiment, the compound of formula (I) is used in a liquid fuel to limit or prevent the valve-sticking phenomenon.
• the compound of formula (I) defined in the present invention enables to greatly improve the detergency properties of a liquid fuel.
• the compound of formula (I) defined in the present invention can be used in diesel fuel as well as in gasoline fuel.
• the compound of formula (I) defined in the present invention allows keeping clean and cleaning up internal parts of engines in a very efficient way.
• the compound of formula (I) defined in the present invention allows reducing or preventing intake valve sticking phenomena, without the use of a carrier oil.
• the compound of formula (I) defined in the present invention can be used in a liquid fuel in order to reduce or prevent simultaneously the coking or lacquering type deposits and the valve sticking phenomenon.
• the present invention concerns a fuel composition
• a fuel composition comprising:
• A, B, C and D represent, independently to each other, an alkyl or an alkenyl group with a number of carbon atoms resulting in a molar mass of A+B+C+D ranging from 84 to 10000 g/mol, being understood that A is optionally hydrogen,
• Each X represents independently to each other the monovalent radical of formula (II):
• each R1, R2, R3, identical or different represent C 1 -C 20 linear or branched, saturated or unsaturated, cyclic or acyclic, hydrocarbyl group;
• each Y represents a C 1 -C 20 linear or branched, saturated or unsaturated, hydrocarbyl group optionally substituted by a functional group comprising oxygen and/or a nitrogen atom(s);
• each n represents an integer ranging from 1 to 20;
• Z represents a C 1 -C 16 , linear or branched, saturated or unsaturated, cyclic or acyclic, hydrocarbyl group optionally substituted by a functional group comprising an oxygen and/or a nitrogen atom.
• both X groups in formula (I) are identical.
• alkyl group means a group constituted by carbon and hydrogen atoms, without unsaturation.
• the alkyl group can be linear or branched.
• the alkyl group is acyclic (not cyclic).
• alkenyl group means a group constituted by carbon and hydrogen atoms, with at least carbon-carbon double bond.
• the alkenyl group can be linear or branched.
• the alkenyl group is acyclic (not cyclic).
• hydrocarbyl group means a group comprising carbon and hydrogen atoms and optionally heteroatoms, such as oxygen and/or nitrogen atoms.
• the hydrocarbyl group can be linear or branched, saturated or unsaturated, cyclic or acyclic, aliphatic or aromatic.
• the hydrocarbyl group can be an alkyl, an alkenyl or an aryl group, optionally substituted by heteroatom(s) or by alkyl or alkenyl branches.
• aryl group means a group comprising at least one aromatic ring.
• the aromatic ring can be substituted by one or more groups selected from hydroxyl group, alkyl group comprising preferably from 1 to 6 carbon atoms, alkoxyl group comprising preferably from 1 to 6 carbon atoms.
• the term “aryl group” refers to a group comprising only one aromatic ring, optionally substituted by one or more groups selected from hydroxyl group, alkyl group comprising preferably from 1 to 6 carbon atoms, alkoxyl group comprising preferably from 1 to 6 carbon atoms.
• A, B, C and D represents, independently to each other, an alkyl or an alkenyl group with a number of carbon atoms resulting in a molar mass of A+B+C+D ranging from 84 to 10000 g/mol, being understood that A is optionally hydrogen.
• the molar mass of A+B+C+D corresponds to the sum of the molar mass of A, B, C and D groups.
• the molar mass of A+B+C+D ranges from 84 to 2000 g/mol, more preferably from 84 to 1000 g/mol, even more preferably from 200 to 750 g/mol.
• A represents a hydrogen atom. According to a preferred embodiment, A is not a hydrogen atom.
• A, B, C and D represents, independently to each other, an alkyl or an alkenyl group comprising from 2 to 16 carbon atoms, preferably from 4 to 12 carbon atoms.
• at least one among A, B, C and D groups represents an alkenyl group preferably comprising from 2 to 16 carbon atoms, more preferably from 4 to 12 carbon atoms.
• a or B is an alkenyl group preferably comprising from 2 to 16 carbon atoms, more preferably from 4 to 12 carbon atoms, even more preferably from 6 to 10 carbon atoms.
• a and B are different groups.
• C and D are different groups.
• each A, B, C and D group comprises less than 4, preferably less than 3, more preferably less than 2, carbon-carbon double bonds.
• all A, B, C and D groups (considered together) comprise less than 4, preferably less than 3, more preferably less than 2, carbon-carbon double bonds.
• R1, R2, R3, identical or different represent a C 1 -C 20 linear or branched, saturated or unsaturated, cyclic or acyclic, hydrocarbyl group.
• the hydrocarbyl group is acyclic and constituted by carbon atoms and hydrogen atoms.
• R1, R2 and R3, identical or different represent a C 1 -C 20 linear or branched alkyl or alkenyl group, preferably a C 1 -C 20 linear or branched alkyl group, more preferably a C 1 -C 20 linear alkyl group.
• R1, R2 and R3, identical or different represent a C 1 -C 12 linear or branched alkyl or alkenyl group, preferably a C 1 -C 12 linear or branched alkyl group, more preferably a C 1 -C 12 linear alkyl group.
• R1, R2 and R3, identical or different represent a C 1 -C 6 linear or branched alkyl or alkenyl group, preferably a C 1 -C 6 linear or branched alkyl group, more preferably a C 1 -C 6 linear alkyl group.
• R1, R2 and R3 are identical and represent a methyl, ethyl or propyl group, preferably a methyl group.
• Y represents a C 1 -C 20 linear or branched, saturated or unsaturated, hydrocarbyl group optionally substituted by a functional group comprising oxygen and/or a nitrogen atom(s).
• Y represents a C 1 -C 12 linear or branched, saturated or unsaturated, acyclic hydrocarbyl group optionally substituted by a functional group comprising oxygen and/or a nitrogen atom(s).
• Y represents a C 1 -C 20 linear or branched, saturated or unsaturated, aliphatic hydrocarbyl group constituted by carbon atoms and hydrogen atoms.
• Y represents a C 1 -C 20 linear or branched alkyl or alkenyl group, preferably a C 1 -C 20 linear or branched alkyl group, more preferably a C 1 -C 20 linear alkyl group.
• Y represents a C 1 -C 12 linear or branched alkyl or alkenyl group, preferably a C 1 -C 12 linear or branched alkyl group, more preferably a C 1 -C 12 linear alkyl group.
• Y represents a C 1 -C 6 linear or branched alkyl or alkenyl group, preferably a C 1 -C 6 linear or branched alkyl group, more preferably a C 1 -C 6 linear alkyl group, even more preferably a C 1 -C 4 linear alkyl group.
• n represents an integer ranging from 1 to 20, preferably from 1 to 16, more preferably from 1 to 12, even more preferably from 1 to 8, ideally from 1 to 4.
• Z represents a C 1 -C 17 , linear or branched, saturated or unsaturated, cyclic or acyclic, aliphatic or aromatic hydrocarbyl group optionally substituted by a functional group comprising an oxygen and/or a nitrogen atom.
• Z is selected from alkyl, alkenyl or aryl groups, optionally substituted by a functional group comprising oxygen and/or a nitrogen atom(s), having a molar mass strictly less than 237 g/mol, preferably less than 210 g/mol.
• Z represents a group selected from:
• Z represents a group selected from:
• Z represents a group selected from:
• Z represents a group selected from:
• Z represents a group selected from:
• Z represents a C 1 -C 16 linear or branched, saturated or unsaturated, aliphatic hydrocarbyl group optionally substituted by a functional group comprising an oxygen and/or a nitrogen atom.
• Z represents a group selected from:
• Z represents a group selected from linear or branched alkyl groups comprising from 1 to 18 carbon atoms, preferably from 5 to 16 carbon atoms.
• the compounds of formula (I) preferably differs by the Z group.
• Z is an alkyl or an alkenyl group
• the compounds of formula (I) can differ by the number of carbon atoms of the Z group.
• the fuel composition comprises a compound of formula (Ia):
• A, B, C and D represent, independently to each other, an alkyl or an alkenyl group comprising from 3 to 24 carbon atoms, preferably from 5 to 16 carbon atoms, and preferably at least one among A, B, C and D represents an alkenyl group;
• X represents the monovalent radical of formula (II):
• Y represents a linear alkyl or alkenyl group comprising from 1 to 8 carbon atoms, preferably a linear alkyl group comprising from 1 to 6 carbon atoms;
• n an integer ranging from 1 to 6;
• Z represents a group selected from:
• aryl groups optionally substituted by a functional group comprising oxygen and/or nitrogen atom(s), such as a hydroxyl function
• linear or branched alkyl groups comprising from 1 to 16 carbon atoms.
• the compound of formula (I) is selected from compounds of formula (Ib) below:
• Z represents a C 1 -C 16 , linear or branched, saturated or unsaturated, cyclic or acyclic, aliphatic or aromatic hydrocarbyl group optionally substituted by a functional group comprising an oxygen and/or a nitrogen atom.
• Z in formula (Ib) is as defined above in relation to formula (II).
• Z in formula (Ib) is selected from a methyl group, a n-pentyl group, ortho-hydroxyphenyl, —(CH 2 ) 10-12 CH 3 and heptadec-8-enyl, preferably from ortho-hydroxyphenyl and —(CH 2 ) 10-12 CH 3 , more preferably from —(CH 2 ) 10-12 CH 3 .
• the compound of formula (I) is prepared by the following process:
• the diacid of formula (III) can be a dimerized oleic acid, tall oil fatty acid, linoleic acid, or mixtures of one or more of these unsaturated acids. These diacids are widely commercially available.
• the diacid can be derived from natural source, such as coconut, laurel, palm, palm kernel, cottonseed, olive, hemp, soybean, tall oil or tallow fats or oils. Coconut-based products are particularly preferred.
• the amino amine of formula (IV) is preferably an amino alkylene amine.
• the amino amine of formula (IV) can be commercially available.
• suitable amino amines of formula (IV) mention may be made of dimethylaminopropylamine (DMAPA) or dimethylaminoethylamine (DMAEA).
• the reaction between compounds of formula (III) and (IV) preferably takes place at a temperature ranging from 160 to 220° C. and a pressure ranging from 1 bar to 4 bars, preferably at atmospheric pressure (around 1 bar).
• the reaction takes place using an inert gas, such as hydrogen, in the gas phase, until for example at least 85, 90 or 95% completion, typically for 30 minutes to 16 hours.
• the molar ratio between the diacid compound and the amino acid compound ranges from 1:1 to 1:4.
• the molar ratio between acid groups and primary amine groups during the reaction ranges from 1:1 to 1:1.1, 1:1.2 or 1:1.25.
• the reaction can be performed in the presence of a catalyst in order to influence speed and selectivity. However, according to an embodiment, no additional catalyst is used in order to avoid purification steps at a later stage.
• a solvent is preferably used. Among suitable solvents, mention may be made of alcohols having from 1 to 14 carbon atoms, such as methanol or ethanol.
• the Route A comprises reacting the amidoamine compound of formula (V) with a carboxyl compound of formula (Vila) in order to provide the compound of formula (I), for example according to the following scheme:
• route A may be preferred since the reactivity of the corresponding compound of formula (Vila) allows to efficiently quaternize the compound of formula (V).
• the compound of formula (VII) can be methyl salicylate.
• the Route B comprises (b1) reacting the amidoamine compound of formula (V) with a dialkyl carbonate compound of formula (VIII) in order to provide a quaternary ammonium compound of formula (IX), for example according to the following scheme:
• X′′ represents the radical of formula (X):
• R′3 represents an alkyl group having preferably from 1 to 6 carbon atoms
• Route B is a two-steps process that can be preferred when the reactivity between the compounds of formula (V) and (VIIb) is not sufficiently high to perform the quaternization.
• the compound of formula (VIIb) is an ester of fatty acid having more than 4 carbon atoms, this kind of ester has a low reactivity in order to quaternize the compound of formula (V) and route B may be preferred to obtain the compound of formula (I).
• the compound of formula (VIII) is dimethylcarbonate or diethylcarbonate, preferably dimethylcarbonate.
• the molar ratio, for reaction (b1), between the dialkyl carbonate compound of formula (VIII) and the amidoamine compound of formula (V) ranges from 2, 2.5, 3, 3.5, or 4 to 1.
• the molar ratio between carbonate groups and tertiary amine groups during the quaternizing reaction ranges from 1, 1.25, 1.5, 1.75, or 2 to 1.
• the molar ratio between carbonate groups and tertiary amine groups during the quaternizing reaction ranges from 1.5-2 to 1.
• the temperature ranges from 80 to 140° C. and the pressure ranges from 1 to 6 bars.
• the time reaction (b1) can ranges from 4 to 24 hours. As an example, a temperature of 110° C., a pressure of 3.5 bar and a time reaction of 8 hours can be suitably used. Residual amounts of compounds of formula (VIII) and solvent can be removed with vacuum and/or nitrogen stripping, and optionally recycled for re-use in the reaction step (b1), after an optional purification.
• the compound of formula (VIIb) is preferably selected from fatty acids, more preferably from saturated linear fatty acids with on average from 8, 10 or 12 carbon atoms up to 24, 20, 18, 16 or 14 carbon atoms.
• at least 50% by weight, preferably at least 70% by weight, more preferably at least 90% by weight, of the compounds of formula (VIIb) are fatty acids having from 11 to 15 carbon atoms, preferably from 12 to 14 carbon atoms.
• suitable compounds of formula (VIIb) mention may be made of commercially available product “mid-cut coco”. As an example, a mixture of lauric acid, myristic acid and palmitic acid ex Pacific Oleochemicals Sdn. Bhd as well as Kortacid® 1299/1499/1698 ex Sigma Aldrich can be used.
• reaction (b2) the temperature ranges from 60 to 120° C.
• the pressure is the atmospheric pressure and the time reaction ranges from 0.5 to 2 hours.
• reaction (b2) 1 or 1.1 up to 2, 1.75, 1.5, or 1.25 moles of carboxyl compounds of formula (VIIb) are used per mole of anion on the quaternary ammonium compound of formula (IX).
• the reaction can be forced to completion by removal of CO2 and/or the solvent used and formed, e.g. methanol if DMC and ethanol if DEC is used as the quaternizing agent.
• the recovered solvent can be recycled to the quaternization reaction (b1). Since typically (m)ethanol is being formed in the anion replacement reaction (b2), typically not all (m)ethanol can be recycled.
• Residual amounts of CO2 and alcohols R30H (such as methanol or ethanol depending on the carbonate used) can be removed under vacuum or by nitrogen stripping, suitably at temperatures of from 60 to 140° C. at a pressure which is lowered from atmospheric pressure to less than 5 mbar.
• the fuel composition may comprise mono-quaternized compound(s), i.e. compounds comprising only one quaternary ammonium function.
• mono-quaternized compound(s) can be represented by the following formula (XI):
• A, B, C, X and X′ have the definitions given above.
• the quaternized radical X can be linked either to the C radical or to the D radical and conversely, the non-quaternized radical X′ can be linked either to the D radical or to the C radical.
• the compound of formula (XI) can be obtained during the quaternization step which can lead to bis-quaternized compounds of formula (I) but also to mono-quaternized compounds of formula (XI). According to a preferred embodiment, mono-quaternized compound(s) represent less than 5% by weight of the total weight of the fuel composition.
• the fuel composition may also comprise tri-quaternized compound(s), i.e. compounds comprising three quaternary ammonium functions. If we refer to formula (I) of the invention, tri-quaternized compounds may reply to formula (I) but wherein A or B are further substituted by a X radical as defined above. Tri-quaternized compounds may be obtained, in addition to compounds of formula (I) of the invention, if reactants of diacid type (see formula (III) above) also comprise triacid compounds.
• tri-quaternized compound(s) represent less than 5% by weight of the total weight of the fuel composition.
• the number of quaternized amine functions is comprised between 65% (included) and 100%, preferably between 70% (included) and 100%, preferably between 75% (included) and 100%, preferably between 80% (included) and 100%, preferably between 90% (included) and 100%, preferably between 95% (included) and 100%, based on the total number of quaternizable amine functions.
• the fuel composition comprises at least 5 ppm, preferably from 5 to 10000 ppm by weight, more preferably from 10 to 5000 ppm by weight, even more preferably from 15 to 1000 ppm by weight, still more preferably from 20 to 500 ppm by weight, of compound(s) of formula (I).
• the liquid fuel is advantageously derived from one or more sources selected from mineral, animal, plant and synthetic sources. Oil will preferably by chosen as mineral source.
• the liquid fuel is preferably chosen from hydrocarbon-based fuels and fuels that are not essentially hydrocarbon-based, alone or as a mixture.
• hydrocarbon-based fuel means a fuel constituted of one or more compounds constituted solely of carbon and hydrogen.
• fuel not essentially hydrocarbon-based means a fuel constituted of one or more compounds not essentially constituted of carbon and hydrogen, i.e. which also contain other atoms, in particular oxygen atoms.
• the hydrocarbon-based fuels especially comprise middle distillates with a boiling point ranging from 100 to 500° C. or lighter distillates with a boiling point in the gasoline range.
• These distillates may be chosen, for example, from the distillates obtained by direct distillation of crude hydrocarbons, vacuum distillates, hydrotreated distillates, distillates derived from the catalytic cracking and/or hydrocracking of vacuum distillates, distillates resulting from conversion processes such as ARDS (atmospheric residue desulfurization) and/or viscoreduction, and distillates derived from the upgrading of Fischer-Tropsch fractions.
• the hydrocarbon-based fuels are typically gasolines and diesel fuels.
• the liquid fuel is selected from diesel fuels and gasoline fuels.
• the gasolines in particular comprise any commercially available fuel composition for spark ignition engines.
• a representative example that may be mentioned is the gasolines corresponding to standard NF EN 228.
• Gasolines generally have high octane numbers (MON or RON) to avoid knock.
• MON motor octane number
• RON research octane number
• Fuels of gasoline type generally have an RON ranging from 90 to 100 and an MON ranging from 80 to 90, the RON and MON being measured according to standard ASTM D 2699-86 or D 2700-86.
• Diesel fuels in particular comprise all commercially available fuel compositions for diesel engines.
• a representative example that may be mentioned is the diesel fuels corresponding to standard NF EN 590.
• Fuels that are not essentially hydrocarbon-based especially comprise oxygen-based compounds, for example distillates resulting from the BTL (biomass to liquid) conversion of plant and/or animal biomass, taken alone or in combination; biofuels, for example plant and/or animal oils and/or ester oils; biodiesels of animal and/or plant origin and bioethanols.
• oxygen-based compounds for example distillates resulting from the BTL (biomass to liquid) conversion of plant and/or animal biomass, taken alone or in combination
• biofuels for example plant and/or animal oils and/or ester oils
• biodiesels of animal and/or plant origin and bioethanols are typically diesel fuels of Bx type or gasolines of Ex type.
• diesel fuel of Bx type for diesel engines means a diesel fuel which contains x % (v/v) of plant or animal ester oils (including spent cooking oils) transformed via a chemical process known as transesterification, obtained by reacting this oil with an alcohol so as to obtain fatty acid esters (FAE). With methanol and ethanol, fatty acid methyl esters (FAME) and fatty acid ethyl esters (FAEE) are obtained, respectively.
• FAME fatty acid methyl esters
• FEE fatty acid ethyl esters
• B followed by a number indicates the percentage of FAE contained in the diesel fuel.
• a B99 contains 99% of FAE and 1% of middle distillates of fossil origin (mineral source)
• B20 contains 20% of FAE and 80% of middle distillates of fossil origin, etc.
• Diesel fuels of Bo type which do not contain any oxygen-based compounds are thus distinguished from diesel fuels of Bx type which contain x % (v/v) of plant oil esters or of fatty acid esters, usually the methyl esters (POME or FAME).
• B100 diesel fuel which contains x % (v/v) of oxygen-based compounds, generally ethanol, bioethanol and/or tert-butyl ethyl ether (TBEE).
• the sulfur content of the liquid fuel is preferably less than or equal to 5000 ppm by weight, preferably less than or equal to 500 ppm by weight and more preferentially less than or equal to 50 ppm by weight, or even less than 10 ppm by weight and advantageously sulfur-free.
• the fuel composition may also comprise one or more other additives different from the compounds of formula (I), chosen from the other known fuel additives, for example from anticorrosion agents, antioxydants, solvents, carrier oils, tracers, dispersants, de-emulsifiers, antifoams, biocides, reodorants, procetane additives, friction modifiers, lubricant additives or oiliness additives, combustion promoters (catalytic combustion and soot promoters), agents for improving the cloud point, the pour point or the cold-flow plugging point (CFPP), anti-sedimentation agents (WASA wax anti-settling agents), antiwear agents and/or conductivity modifiers.
• additives different from the compounds of formula (I), chosen from the other known fuel additives, for example from anticorrosion agents, antioxydants, solvents, carrier oils, tracers, dispersants, de-emulsifiers, antifoams, biocides, reodorants, procetane additives, friction modifiers, lub
• procetane additives especially (but not limitatively) chosen from alkyl nitrates, preferably 2-ethylhexyl nitrate, aryl peroxides, preferably benzyl peroxide, and alkyl peroxides, preferably tert-butyl peroxide;
• antifoam additives especially (but not limitatively) chosen from polysiloxanes, oxyalkylated polysiloxanes and fatty acid amides derived from plant or animal oils. Examples of such additives are given in EP861882, EP663000 and EP736590;
• CFI cold flow improvers
• EVA ethylene/vinyl acetate
• EVE ethylene/vinyl ethanoate
• EMMA ethylene/methyl methacrylate
• ethylene/alkyl fumarate copolymers described, for example, in U.S. Pat. Nos. 3,048,479, 3,627,838, 3,790,359, 3,961,961 and EP261957;
• lubricant additives or anti-wear agents especially (but not limitatively) chosen from the group constituted by fatty acids and ester or am ide derivatives thereof, especially glyceryl monooleate, and monocyclic and polycyclic carboxylic acid derivatives;
• lubricant additives or anti-wear agents especially (but not limitatively) chosen from the group constituted by fatty acids and ester or am ide derivatives thereof, especially glyceryl monooleate, and monocyclic and polycyclic carboxylic acid derivatives;
• lubricant additives or anti-wear agents especially (but not limitatively) chosen from the group constituted by fatty acids and ester or am ide derivatives thereof, especially glyceryl monooleate, and monocyclic and polycyclic carboxylic acid derivatives;
• cloud point additives especially (but not limitatively) chosen from the group constituted by long-chain olefin/(meth)acrylic ester/maleimide terpolymers, and fumaric/maleic acid ester polymers.
• examples of such additives are given in FR2528051, FR2528051, FR2528423, EP112195, EP172758, EP271385 and EP291367;
• detergent additives especially (but not limitatively) chosen from the group constituted by succinimides, polyetheramines and quaternary ammonium salts other than compounds of formula (I); for example those described in U.S. Pat. No. 4,171,959 and WO2006135881;
• cold workability polyfunctional additives chosen from the group constituted by polymers based on olefin and alkenyl nitrate as described in EP573490.
• additives are generally added in the fuel composition an amount ranging from 0.5 to 1000 ppm by weight (each), more preferably ranging from 1-500 ppm by weight (each), more preferably ranging from 1-400 ppm by weight (each), even more preferably ranging from 1-20 ppm by weight (each).
• PIBSI-quaternary ammonium salt polyisobutylene succinimide-quaternary ammonium salt, a PIBSI quaternized by an ammonium
• PIBSI-quaternary ammonium salt polyisobutylene succinimide-quaternary ammonium salt, a PIBSI quaternized by an ammonium
• Mannich base preferably a PIB-Mannich (polyisobutylene succinimide) base or a phenol Mannich base, obtained for example by reacting a phenol with a polyamine,
• PIBSI-AQ PIBSI-quaternary ammonium salt
• betaine especially alkylamidoamine betaine, especially alkylamidoamine betain with fatty chain, the fatty chain typically comprising from 8 to 30 carbon atoms.
• a combination selected from combinations h), i), j), k), l) m), and n) is used in gasoline compositions, i.e. with a liquid fuel which is a gasoline fuel.
• a combination selected from combinations h), o) and p) is used in diesel compositions, i.e. with a liquid fuel which is a diesel fuel.
• the option o), used in a diesel composition comprised a quantity of around 120-130 ppm by weight of the betain compound, and around 10-30 ppm by weight, more especially around 20-25 ppm by weight of compound of formula (I) according to the composition of diesel.
• the option p), used in a diesel composition comprised a quantity of around 120-130 ppm by weight of PIBSI-AQ and around 120-130 ppm by weight of the betain compound, and around 10-30 ppm by weight, more especially around 20-25 ppm by weight of compound of formula (I) according to the composition of diesel.
• the compound of formula (I) is in a molar excess with respect to the betain compound or the betain compound is in a molar excess with respect to the compound of formula (I).
• the molar ratio between the compound of formula (I) and the betain compound ranges from 1.15, 1.25, 1.5, 1.75, or 2 to 2.5 or from 0.15, 0.2, 0.25, 0.3, 0.4, or 0.5 to 0.9.
• the molar ratio between the compound of formula (I) and the betain compound ranges from 1.75 to 2.25 or from 0.3 to 0.7.
• the fuel composition is prepared according to any known process by supplementing the liquid fuel described previously with at least one compound of formula (I) as described above.
• Another object of the present invention is the use of the compound of formula (I) defined above as a detergent additive in a liquid fuel, preferably for combustion engine, even more preferably for internal combustion engine, including diesel internal combustion engine and gasoline internal combustion engine.
• detergent additive for liquid fuel means an additive which is incorporated in small amount into the liquid fuel and produces an effect on the cleanliness of said motor when compared with said liquid fuel not specially supplemented.
• small amount it can be understood an amount as small as 5 ppm by weight, and up to 10000 ppm by weight.
• the use of the compound of formula (I) as described previously in the liquid fuel makes it possible to maintain the cleanliness of at least one of the internal parts of the engine and/or to clean at least one of the internal parts of the engine, the engine being preferably a combustion engine and more preferably an internal combustion engine.
• the use of the compound of formula (I) in the liquid fuel makes it possible in particular to limit or prevent the formation of deposits in at least one of the internal parts of said engine (“keep-clean” effect) and/or to reduce the existing deposits in at least one of the internal parts of said engine (“clean-up” effect).
• the use of the compound of formula (I) in the liquid fuel makes it possible, when compared with liquid fuel that is not specially supplemented with additive, to limit or prevent the formation of deposits in at least one of the internal parts of said engine or to reduce the existing deposits in at least one of the internal parts of said engine.
• the use of the compound of formula (I) in the liquid fuel makes it possible to observe both effects simultaneously, limitation (or prevention) and reduction of deposits (“keep-clean” and “clean-up” effects).
• the deposits are distinguished as a function of the type of internal combustion engine and of the location of the deposits in the internal parts of said engine.
• the internal combustion engine is a spark ignition engine, preferably with direct injection (DISI: direct-injection spark ignition engine).
• DISI direct-injection spark ignition engine
• the deposits targeted are located in at least one of the internal parts of said spark ignition engine.
• the internal part of the spark ignition engine kept clean and/or cleaned up is advantageously chosen from the engine intake system, in particular the combustion chamber (CCD: combustion chamber deposit, or TCD: total chamber deposit) and the fuel injection system, in particular the injectors of an indirect injection system (PFI: port fuel injector) or the injectors of a direct injection system (DIS 1).
• the use of the compound of formula (I) in the liquid fuel makes it possible, when compared with liquid fuel that is not specially supplemented with additive, to limit or prevent the valve sticking phenomenon, in particular to reduce the deposits on the intake valve stems.
• the internal combustion engine is a diesel engine, preferably a direct-injection diesel engine or an indirect-injection diesel engine in particular a diesel engine with a common-rail injection system (CRDI: common-rail direct injection).
• CCDI common-rail direct injection
• the internal combustion engine is a gasoline engine, which can be a direct-injection gasoline engine or an in direct-injection gasoline engine.
• the deposits targeted are located in the injection system of the diesel engine, preferably located on an external part of an injector of said injection system, for example the fuel spray tip and/or on an internal part of an injector of said injection system (IDID: internal diesel injector deposits), for example on the surface of an injector needle.
• IDID internal diesel injector deposits
• the deposits may be constituted of coking-related deposits and/or deposits of soap and/or lacquering type.
• the compound of formula (I) as described previously may advantageously be used in the liquid fuel to reduce and/or prevent power loss due to the formation of deposits in the internal parts of a direct-injection diesel engine, said power loss being determined according to the standardized engine test method CEC F-98-08.
• the compound of formula (I) as described previously may advantageously be used in the liquid fuel to reduce and/or prevent restriction of the fuel flow emitted by the injector of a direct-injection diesel engine during its functioning, said flow restriction being determined according to the standardized engine test method CEC F-23-1-01.
• the use of the compound of formula (I) as described above makes it possible, when compared with liquid fuel that is not specially supplemented, to limit or prevent the formation of deposits on at least one type of deposit described previously and/or to reduce the existing deposits on at least one type of deposit described previously.
• the use of the compound of formula (I) described above also makes it possible to reduce the fuel consumption of an internal combustion engine.
• the use of the compound of formula (I) described above also makes it possible to reduce the pollutant emissions, in particular the particle emissions of an internal combustion engine.
• the use of the compound of formula (I) makes it possible to reduce both the fuel consumption and the pollutant emissions.
• pollutant emissions mention may be made of nitrogen oxides (NOx), sulphurized oxides (SOx), hydrocarbons, carbon oxides (Cox) and particles.
• the compound of formula (I) described above may be used alone, in the form of a mixture of at least two of said compounds of formula (I) or in the form of a concentrate.
• the compound of formula (I) may be added to the liquid fuel in a refinery and/or may be incorporated downstream of the refinery and/or optionally as a mixture with other additives in the form of an additive concentrate, also known by the common name “additive package”.
• the compound of formula (I) described above is typically used as a mixture with an organic liquid in the form of a concentrate.
• a fuel concentrate comprises one or more compounds of formula (I) as described above, as a mixture with an organic liquid.
• the organic liquid is inert with respect to the compound of formula (I) described above and miscible in the liquid fuel described previously.
• miscible describes the fact that the compound of formula (I) and the organic liquid form a solution or a dispersion so as to facilitate the mixing of the compound of formula (I) in the liquid fuels according to the standard fuel supplementation processes.
• the organic liquid is advantageously chosen from aromatic hydrocarbon-based solvents such as the solvent sold under the name Solvesso, alcohols, ethers and other oxygen-based compounds and paraffinic solvents such as hexane, pentane or isoparaffins, alone or as a mixture.
• aromatic hydrocarbon-based solvents such as the solvent sold under the name Solvesso, alcohols, ethers and other oxygen-based compounds
• paraffinic solvents such as hexane, pentane or isoparaffins, alone or as a mixture.
• the concentrate may advantageously comprise from 5% to 99% by weight, preferably from 10% to 80% by weight and more preferentially from 25% to 70% by weight of compound(s) of formula (I) as described previously.
• the concentrate may typically comprise from 1% to 95% by weight, preferably from 10% to 70% by weight and more preferentially from 25% to 60% by weight of organic liquid, the remainder corresponding to the compound(s) of formula (I).
• the compound of formula (I) is used in the form of an additive concentrate in combination with at least one other fuel additive for an internal combustion engine other than the compound(s) of formula (I) described previously.
• the additive concentrate may typically comprise one or more other additives selected from additives other than the compounds of formula (I) described above, for example from anticorrosion agents, dispersants, de-emulsifiers, antifoams, biocides, reodorants, procetane additives, friction modifiers, lubricant additives or oiliness additives, combustion promoters (catalytic combustion and soot promoters), agents for improving the cloud point, the pour point or the cold-flow plugging point (CFPP), anti-sedimentation agents, anti-wear agents and conductivity modifiers.
• the additives may be those listed above in relation to the fuel composition.
• additives are generally added in the concentrate in an amount ranging from 0.1 to 95% by weight (each), more preferably ranging from 0.2 to 80%, even more preferably ranging from 0.3 to 70%, based on the total weight of the concentrate.
• a process for maintaining the cleanliness (keep-clean) and/or for cleaning (clean-up) at least one of the internal parts of an engine comprises the preparation of a fuel composition by supplementation of a fuel with one or more compound(s) of formula (I) as described above and combustion of said fuel composition in the internal combustion engine.
• the representative characteristic of the detergency properties of the fuel will depend on the type of internal combustion engine, for example a diesel or spark ignition engine, the direct or indirect injection system and the location in the engine of the deposits targeted for cleaning and/or maintaining the cleanliness.
• the detergency properties of the fuel may be assessed, for example, by the power loss due to the formation of deposits in the injectors or by the restriction of the fuel flow emitted by the injector during the functioning of said engine.
• the detergency properties may also be assessed by the appearance of lacquering-type deposits on the injector needle (IDID).
• the compound of formula (I) is used in combination with at least one quaternary ammonium compound different from compounds of formula (I), such as polyisobutylene succinimide quaternary ammonium salts, and at least one betaine, such as alkylamidoamine betaine, in a diesel composition in order to reduce the power loss in diesel engines.
• the compound of formula (I) is used in combination with at least one Mannich base, such as a phenol Mannich base, and at least one polyisobutylene succinimide compound, in a gasoline composition in order to reduce the power loss in gasoline engines.
• the compound of formula (I) is used in combination with at least one polyisobutylene succinimide compound, in a gasoline composition in order to reduce the power loss in gasoline engines.
• the compound of formula (I) is used in combination with at least one betaine, such as alkylamidoamine betaine, in a diesel composition in order to reduce the power loss in diesel engines.
• Another object of the present invention relates to the use of the compound of formula (I) as defined previously as a demulsifying additive in a liquid fuel. More particularly, the compound of formula (I) as defined previously can be used to separate water and liquid fuel, when said liquid fuel contains water.
• the specific embodiments defined above in relation to the compound of formula (I) and to the liquid fuel also apply to the use of the compound of formula (I) as a demulsifying additive in a liquid fuel.
• Another object of the present invention relates to the use of the compound of formula (I) as defined previously as a lubricity additive in a liquid fuel. More particularly, the compound of formula (I) as defined previously can be used to improve lubricity of liquid fuel, in particular in gasoline fuel.
• the specific embodiments defined above in relation to the compound of formula (I) and to the liquid fuel also apply to the use of the compound of formula (I) as a lubricity additive in a liquid fuel.
• Another object of the present invention relates to the use of the compound of formula (I) as defined previously as a corrosion inhibitor additive in a liquid fuel. More particularly, the compound of formula (I) as defined previously can be used to prevent surface corrosion of metallic components throughout the fuel storage and the delivery systems, when liquid fuel contains water.
• the specific embodiments defined above in relation to the compound of formula (I) and to the liquid fuel also apply to the use of the compound of formula (I) as a corrosion inhibitor in a liquid fuel.
• Another object of the present invention relates to the use of the compound of formula (I) as defined previously as an antioxidant additive and/or stability improver in a liquid fuel. More particularly, the compound of formula (I) as defined previously can be used to enhance fuel stability and inhibit its tendency to deteriorate in storage.
• the specific embodiments defined above in relation to the compound of formula (I) and to the liquid fuel also apply to the use of the compound of formula (I) as an antioxidant additive and/or stability improver in a liquid fuel.
• Another object of the present invention relates to the use of the compound of formula (I) as defined previously as a conductivity improver in a liquid fuel. More particularly, the compound of formula (I) as defined previously can be used to greatly enhance the conductivity of the blended fuel so that static charge accumulation cannot readily occur and charge dissipation rates are increased, thus preventing static discharge which could lead to an obvious fire hazard.
• Another object of the present invention relates to the use of the compound of formula (I) as defined previously as a metal deactivator in a liquid fuel containing soluble metal salts, know to promote instability in the fuel by catalysing the oxidation reactions. More particularly, the compound of formula (I) as defined previously can be used to react with dissolved metal in the fuel to form stable chelate in which the metal has no pro-oxidant effect.
• Another object of the present invention relates to the use of the compound of formula (I) in the oilfield industry, e.g. in oil well drilling operations or oil production operations.
• the present invention also describes the following items, which are an embodiment of the present invention:
• the compounds of formula (I) that have been tested in the present examples can be obtained by the following process, performed in a batch reactor.
• First step 1 mole (573 g.) of a dimer fatty acid (Pripol® 1013 from Croda GmbH) is reacted with 2.4 moles (245 g.) of dimethyl amino propyl amine (DMAPA) (commercially available from Sigma Aldrich). 1.4 g. of 50% H 3 PO 2 is added as catalyst. The temperature is increased in 5 h. to 190° C. and maintained for 3 h. at atmospheric conditions. Excess DMAPA is removed at 190° C. and 20 mbar.
• the first step reaction can be illustrated by the scheme below:
• Second step 1 mole (730 g) of the amidoamine from the previous step is reacted with 4 moles of dimethylcarbonate (360 g.) (commercially available from Sigma Aldrich) in 360 g. of methanol.
• the reaction mixture is heated for 8 h. at 110° C. and 3.5 bar.
• the excess dimethyl carbonate and methanol are removed at 90° C. and 5 mbar.
• To prevent gelation some 225 g. (20%) of 2-ethyl-1-hexanol (commercially available from Sigma Aldrich) is added.
• the second step can be illustrated by the scheme below:
• Example 2 Coking Injector Keep-Clean Performances in a Diesel Fuel
• a set of samples is prepared and tested in the Volkswagen XUD9 diesel fuel injector fouling test, designated CEC F-23-01.
• the Peugeot XUD9 engine is an indirect injection engine. In the test, the flow loss percent in the fuel injector is measured at the end of the test, with lower flow loss percent being desired, as indicative of reduced injector deposit formation.
• the additive is added into the diesel fuel (Bo type) with a treat rate of 50 mg/kg of active material.
• Example 3 Coking Injector Clean-Up Performances in a Diesel Fuel
• Example 4 Coking Injector Keep Clean Performances in a Gasoline Fuel with a Direct Injection System
• the method was developed on a modern downsized DISI (4 cylinders, 6-holes injectors, 150 bar of injection pressure, 1.2 L, 85 kW) engine representative of current production.
• the test cycle repeated for 30 hours, uses high engine speeds at a low load operating point.
• the fouling is evaluated via the measurement of the change in mass of fuel per injection and comparing this result between the injector when new (before the test) and of the fouled injector at the end of the test, by using a hydraulic test bench.
• Example 5 Coking Injector Clean Up Performances in a Gasoline Fuel with a Direct Injection System
• This CEC test is being developed by Volkswagen.
• the proposed test addresses injector deposits in direct injection spark ignited engines (DISI) and the deposit control ability of gasoline, so that it can be used to evaluate DISI-DCA (Deposit Control Additives) performance of gasoline.
• DISI direct injection spark ignited engines
• the test engine is the VW EA1111.4 L TSI (CAVE) engine with 132 kW, representing the Skoda version of the EA111 engine family, developed by Volkswagen AG.
• the twin charged engine is equipped with a supercharger and a turbo charger, including charge air cooler.
• the test procedure is performed with new 6-hole injectors, type 03C906036E/F from Bosch or Magneti Marelli.
• the injector run-in procedure is performed at high load for 4 hours.
• the thermostat is in serial condition.
• Nozzle coking is measured as change of injection timing. Due to nozzle coking, the hole diameter of the injector holes is reduced and the injection time adjusted by the Engine Control Unit (ECU) accordingly.
• the injection time in milliseconds is a direct readout from the ECU via ECU control software.
• the clean-up procedure starts with a dirty up phase of 48 hours deposit formation with the RF-83 (SP95 E0) reference fuel with a continuous measurement of the increase of injection time, followed with additized fuel for 24 hours. Ideally the injection time reaches the initial value of the test run.
• a linear trend calculation at start of test and end of test defines the nozzle coking during 48 hours of dirty up phase.
• the total nozzle coking after 48 hours is the reference for the recovery calculation during the 24 hours clean up phase.
• Different detergents have been compared at a treat rate of 100 mg/kg of active material in a gasoline of type SP95 E 0 CEC RF-83: the DAQ-salicylate according to the invention and detailed in example 1, a quaternary ammonium derived from a PIBSI (Quat. PIBSI) as described in WO2006135881 and a commercially available polyisobutyleneamine from BASF (PIB-amine). The results are indicated in table 4, as well as the time needed to reach 100% of scrubbing.
• Example 6 Valve-Sticking Properties of a Gasoline Fuel
• each gasoline fuel (SP98 E5 type) have been supplemented with 300 mg/kg of one additive.
• Different additives have been used:
• valve-sticking results Detergents Valve sticking DAQ-mC NO Quat. PIBSI YES PIB-amine YES Mannich base YES As can be observed in table 6, only the compound of formula (I) according to the invention allows preventing the valve-sticking phenomenon.
• Example 7 Demulsifying Properties of a Diesel Fuel
• each diesel fuel (B7 type) have been supplemented with 100 mg/kg of one additive.
• Different additives have been used:
• the compounds of formula (I) according to the invention are the compounds that are less harmful for the demulsifying property of the diesel fuel allowing recovering 15 mL of introduced water in only 150 and 120 seconds for DAQ-salicylate and DAQ-mC respectively, whereas for the detergent additives of the prior art need more than 300 seconds are needed.
• Example 8 Demulsifying Properties in a Gasoline Fuel
• Example 9 Lubricant Performances in a Gasoline Fuel
• each gasoline fuel SP95 E 0 type
• Different additives have been used:
• HFRR High Frequency Reciprocating Rig
• Example 10 Reducing Fuel Consumption Properties in a Diesel or Gasoline Fuel
• the method was developed on a STAGE IV DEUTZ TCD3.6 engine (4 cylinders, 3.6 L, 75 kW), which is used by many brands of vehicles (Liebherr, Claas, Manitou . . . ).
• Two detergents have been compared at a treat rate of 100 mg/kg of active material in the EN590 diesel fuel (B7 type).
• DISI Direct Injection Spark Ignition Gasoline Engine Test: Same engine test as already described in Example 4. Tests have been conducted on the “keep-clean” procedure to investigate the performance of the different samples.
• Two detergents have been compared at a treat rate of 100 mg/kg of active material in the CEC RF-83 gasoline.
• the detergents are: the DAQ-mC according to the invention and detailed in example 1, a quaternary ammonium derived from a PIBSI (Quat. PIBSI) as described in WO2006135881, and a commercially available polyisobutyleneamine (PIB-amine) from BASF.
• PIBSI Quat. PIBSI
• PIB-amine polyisobutyleneamine
• Example 11 Conductivity Improver Properties in a Diesel or Gasoline Fuel
• Example 12 Metal Deactivator Properties in a Diesel Fuel
• DW10 Test Determination of Power Loss as a Result of Injector Deposits in the Common Rail Diesel Engine A specific characteristic of the ability of a fuel composition to deactivate and/or passivate metallic surfaces may consist of decreasing the injector deposits amount.
• the keep-clean test is based on CEC test procedure F-098-08 Issue 5. This is done using the same test setup and engine type (PEUGEOT DW10B, 4 cylinders, 2.0 L) as in the CEC procedure. Each combustion chamber comprises 4 valves.
• the injectors are of the piezo DI type satisfying the Euro V classification in terms of emissions.
• This test consists of the repetition, consecutively, of a sequence consisting of:
• the previous sequence is performed 3 times in total.
• step 1 At the end of each hour of operation (step 1), an engine power measurement is performed.
• the fouling tendency of the injector is then determined by the nominal power difference measured between the beginning and the end of the test cycle.
• the operating periods of the engine actually correspond to the repetition of a cycle whose total duration is equal to 1 hour and whose main characteristics are given in Table 13 below.
• a running phase of the engine (8 hours in total) therefore corresponds to the sequence of 8 cycles as defined in Table 13.
• the engine is rinsed and the injectors removed for inspection, cleaning, and reinstallation into the engine.
• the new injectors undergo, before the implementation of the following series, a run-in cycle of 16 hours.
• the engine is then operated according to the test cycle and a power measurement at 4,000 rpm and at full load is performed to verify the full restoration of engine power after injector cleaning. As the power measurements conform to the specifications, the next series is started.
• a diesel fuel (B7 type) has been supplemented with 1 mg/kg of zinc (Zn) and,
• Example 13 Antioxidant Properties in a Diesel Fuel
• the antioxidant properties of biodiesel fuel compositions have been evaluated using the modified Rancimat method (method reference EN 15751). Indeed, the oxidation stability is a key parameter of diesel fuel quality which has taken on extra importance as a result of the decrease in stability from desulphurisation and biodiesel blending. In this test, an induction period (in hours) is measured.
• each diesel fuel (B7 type) have been supplemented with 100 mg/kg of one additive.
• Two additives have been used:
• Quat-PIBSI a quaternary ammonium derived from a PIBSI, as described in WO2006135881,
• BET alkylamidoamine betain with fatty chain comprising from 8 to 30 carbon atoms. Amounts of additives (expressed in ppm of active material) in the diesel compositions and the average flow loss are indicated in table 16.
• the injector flow loss has been evaluated in gasoline compositions comprising combinations of additives.
• the test has been implemented in a direct injection 3-cylinder engine EDB2DTS of PSA.
• the gasoline in this example is a gasoline SP95 E10 according to standard NF EN 228.
• the flow loss between before the test is compared with the flow loss after the test. Different combinations of additives have been tested.
• Amounts of additives (expressed in ppm of active material) in the gasoline compositions and the flow loss are indicated in table 17.

Landscapes

• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• Combustion & Propulsion (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Liquid Carbonaceous Fuels (AREA)

Applications Claiming Priority (4)

Publications (2)

Family

ID=64665346

Family Applications (1)

Country Status (4)

Families Citing this family (3)

Citations (38)

Family Cites Families (21)

• 2019
  • 2019-11-29 EP EP19808850.2A patent/EP3887488B1/fr active Active
  • 2019-11-29 WO PCT/EP2019/083118 patent/WO2020109568A1/fr unknown
  • 2019-11-29 US US17/298,742 patent/US11629303B2/en active Active
  • 2019-11-29 CN CN201980090934.XA patent/CN113366094A/zh active Pending

Patent Citations (42)

Also Published As

Similar Documents

Legal Events